Hi Lollipoplady, and thanks for joining in the conversation here. You may be aware that everyone responds differently to pulmonary rehabilitation. In the most general of terms, doing any form of exercise requires consistent application. It's perfectly okay if you can only attend sessions once a week but, in order to be successful, I would suggest you try to do the exercises (you've learned at your sessions) more frequently, if you are physically capable of doing so. A good rule of thumb would be about three times a week.
Naturally, you should speak about this with both your physician and the pulmonary rehabilitation staff.
Please do check back and let us know how you're doing. You are always welcome here!
Leon (site moderator)